Rated 5 out of
5 by
Cobrabob from
Second time's a charmI bought my first Battery Manager about a year ago for my '02 TT, which sits in the garage 95% of the time and munches on its battery. After eating three batteries in about as many years, I sprung for the Manager. The first one did not work well at all--the readouts didn't make sense and it wouldn't keep the battery charged up. Griot's replaced that unit with no hassles and the new one is great. It will charge a nearly dead battery (no experience with a dead battery with it) and it's entertaining to watch the LED readouts blink as it goes through its paces. It also works great if I go away and turn off power to the garage--it comes right back to its settings when I restore the power. Very happy with the product and Griot's customer service.

Date published: 2016-04-28

Rated 5 out of
5 by
Colonel R from
Battery Manage VI've used this once and it brought a near-dead battery back to life. What's more, it will maintain a battery - not simply charge it. With the clearly written instructions and the accessories that are supplied it is simple to use and it doesn't require constant monitoring like a straight battery charger sometimes does.

Date published: 2014-12-04

Rated 1 out of
5 by
cjhoward from
Didn't keep my battery chargedI bought this last fall to use on my covertible I store in a family member's garage over the winter. We had a tough winter and they lost power several times. The unit comes back on when the power returns, but it does not default to the correct settings. Not sure if this is the reason why, but my battery was dead as a doornail before spring even arrived. I'm now in search of a unit that defaults to the correct settings.

I have 2006 BMW M3 Conv. Battery is in trunk, &amp; even worse it's under trunk floorboard. Does it have an adapter that I could leave attached to my battery &amp; then feed the said cable from my battery to attach it to main cable from Battery Manager.

Asked by: Craigaleg

An alternate method of charging your battery located in the trunk would be to use the cigarette lighter/DC outlet adapter that is included with the Battery Manager V. If your vehicle has a &quot;live&quot; cigarette lighter/DC outlet that receives power even when the vehicle is off (no keys in ignition) then you will be able to charge the battery using the Battery Manager V plugged in through the cigarette lighter/DC outlet. Simply connect the cigarette lighter/DC outlet quick disconnect adapter to the Battery Manager V. Then plug the adapter into your &quot;live&quot; cigarette lighter/DC outlet and operate the Battery Manager V as normal by plugging it into an AC wall outlet, selecting settings, and pressing charge.

Answered by: GG_Sam

Date published: 2017-12-26

I must admit, I'm a little confused. I was ready to purchase a Battery Manager V until I saw the Microprocessor-Controlled Battery Charger/Maintainer. My primary use will be keeping a Ford Mustang charged between drives. What is the difference?

Asked by: New Shelby Owner

The Microprocessor-Controlled Battery Charger/Maintainer also allows the user to charge a battery at 3 different rates, 20 Amp, 10 Amp, and 2 Amp. In addition to the different charge rates it has the ability to read and display battery voltage and percentage charged. The Battery Manager V does not contain any of the above features but is typically the most popular choice for long term storage. The Battery Manager V features a Recovery Mode that the Microprocessor-Controlled Unit does not. Recovery Mode allows the Battery Manager V to save settings and restart where it left off in the event of a power outage. Other units simply shut off and do not power back on after a power outage. The Battery Manager V also allows the user to choose between three different connection options, alligator clips, ring connectors (hardwired to battery terminals), or the 12V DC outlet adapter. With the Microprocessor-Controlled Charger/Maintainer you are limited to alligator clips only.

Answered by: GG_Sam

Date published: 2016-12-20

When the battery manager has charged the battery and is in maintenance mode, which lights should be lit?

Asked by: Cobrabob

In the &quot;Resting Phase&quot; (first phase of &quot;Maintenance Mode&quot; after the &quot;Completion Phase&quot;) the Charging LED will be OFF and the Complete LED will SLOWLY FLASH. In the &quot;Exercising Phase&quot; (second phase of &quot;Maintenance Mode&quot;) BOTH the Charging LED and the Complete LED should be FLASHING at the same rate.

Answered by: GG_Sam

Date published: 2015-02-06

What is the difference between the Battery Manager IV and this new V? When I store my BMW Convertible for the long Green Bay winters I remove the battery to maintain it in my basement.

Asked by: Roadster Larry

The Battery Manager V has a microprocessor which saves your setting information. If your power goes out it will come back on once the power comes back on. The Battery Manager IV does need to be reset each time the power is shut off.

Answered by: GGKayla

Date published: 2015-11-19

I have been looking for a device that will tell one how much life is left in the battery. Does this do that? Do you have something else that reads battery life?

Asked by: Laurence

The Battery Manager V does not indicate how much life or voltage is left in a battery. For voltage readings and other battery data our Battery System Tester - 10523 is a great option. Another choice that may suit your needs better is our Microprocessor-Controlled Battery Charger/Maintainer - 92256 which can both recharge a fully dead battery as well as maintain a battery in storage. It contains features similar to the Battery Manager V but also displays voltage readings and % charge on a digital display on the top of the unit.

Answered by: GG_Sam

Date published: 2014-11-26

can you keep it connected for long periods?

Asked by: cobi

Yes you are able to keep the Battery Manager V connected for long periods of time.

Answered by: GG_Vikki

Date published: 2016-01-16

Can a typical 2 cord 12v extension cable (with one exposed contact and one covered contact on the plug ends) be used with this charger?&nbsp;

Asked by: Nicks

We would not recommend using any adaptors or cables that are not included with the Battery Manager V.

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